<!--
 * @Descripttion:
 * @Author: armin
 * @Date: 2021-07-21 15:00:13
 * @LastEditors: armin
 * @LastEditTime: 2022-04-11 15:51:26
-->
<template>
  <div class="post-detail-page">
    <modal
      title="删除文章"
      content="确定要删除这篇文章吗？"
      :visible="modalIsVisible"
      @modal-on-close="modalIsVisible = false"
      @modal-on-confirm="hideAndDelete"
    />
    <article class="w-75 mx-auto mb-5 pb-3" v-if="currentPost">
      <img
        :src="currentImageUrl"
        alt="currentPost.title"
        class="rounded-lg img-fluid my-4"
        v-if="currentImageUrl"
      />
      <h2 class="mb-4">{{ currentPost.title }}</h2>
      <div
        class="
          user-profile-component
          border-top border-bottom
          py-3
          mb-5
          align-items-center
          row
          g-0
        "
      >
        <div class="col">
          <user-profile
            :user="currentPost.author"
            v-if="typeof currentPost.author === 'object'"
          ></user-profile>
        </div>
        <span class="text-muted col text-right font-italic"
          >发表于：{{ currentPost.createdAt }}</span
        >
      </div>
      <div v-html="currentHTML"></div>
      <div v-if="showEditArea" calss="btn-group mt-5">
        <router-link
          type="button"
          class="btn btn-success mr-5"
          :to="{ name: 'create', query: { id: currentPost._id } }"
          >编辑</router-link
        >
        <button
          type="button"
          class="btn btn-danger"
          @click.prevent="modalIsVisible = true"
        >
          删除
        </button>
      </div>
    </article>
  </div>
</template>

<script lang="ts">
import { defineComponent, onMounted, computed, ref } from 'vue'
import { marked } from 'marked'
import { useStore } from 'vuex'
import { useRoute, useRouter } from 'vue-router'
import { IGlobalDataProps, PostProps, ImageProps, UserProps, ResponseType } from '../store'
import UserProfile from '../components/UserProfile.vue'
import Modal from '../components/Modal.vue'
import createMessage from '../components/createMessage'
export default defineComponent({
  name: 'posts',
  components: {
    UserProfile,
    Modal
  },
  setup () {
    const store = useStore<IGlobalDataProps>()
    const route = useRoute()
    const router = useRouter()
    const modalIsVisible = ref(false)
    const currentId = route.params.id
    onMounted(() => {
      store.dispatch('fetchPost', currentId)
    })
    const currentPost = computed<PostProps>(() =>
      store.getters.getCurrentPost(currentId)
    )
    const currentHTML = computed(() => {
      const { content, isHTML } = currentPost.value
      if (currentPost.value && content) {
        return isHTML ? content : marked.parse(content)
      } else {
        return ''
      }
    })
    //! 可编辑
    const showEditArea = computed(() => {
      const { isLogin, _id } = store.state.user
      if (currentPost.value?.author && isLogin) {
        const postAuthor = currentPost.value.author as UserProps
        return postAuthor._id === _id
      } else {
        return false
      }
    })
    const currentImageUrl = computed(() => {
      if (currentPost.value && currentPost.value.image) {
        const { image } = currentPost.value
        return (image as ImageProps).url + '?x-oss-process=image/resize,w_850'
      } else {
        return null
      }
    })
    //! 删除文章并关闭弹框
    const hideAndDelete = () => {
      modalIsVisible.value = false
      store.dispatch('deletePost', currentId).then((rawData: ResponseType<PostProps>) => {
        createMessage('删除成功，2秒后跳转到专栏首页', 'success', 2000)
        setTimeout(() => {
          router.push({ name: 'column', params: { id: rawData.data.column } })
        }, 2000)
      })
    }
    return {
      currentPost,
      currentImageUrl,
      currentHTML,
      showEditArea,
      modalIsVisible,
      hideAndDelete
    }
  }
})
</script>
